Keep your speed and momentum up on your stand up paddleboard with our patented Dimple Technology SUP fins. Dimples are proven to reduce drag by up to 15% while still providing maximum stability. Reducing drag increases speed. This is extremely important with large stand up paddleboard fins, as they can greatly slow down your longboard due to their fin’s large surface area. 3DFINS GOHARD series SUP / longboard fins reduces drag, increases speed and provides maximum control and stability in turns and most importantly, helps you keep your speed, extending your ride and making them more enjoyable. From your first ride, you’ll definitely feel the extra speed. Check out all our longboard fin designs, we are sure to have on that suites your style.